Adapter.getView上的参数convertView上的IllegalArgumentException

概述java.lang.IllegalArgumentException:Parameterspecifiedasnon-nullisnull:methodkotlin.jvm.internal.Intrinsics.checkParameterIsNotNull,parameterconvertViewAdapter.getViewatandroid.widget.AbsListView.obtainView(AbsListView.java:2346)ata

java.lang.IllegalArgumentException: Parameter specifIEd as non-null is null: method kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter convertVIEwAdapter.getVIEw at androID.Widget.AbsListVIEw.obtainVIEw(AbsListVIEw.java:2346)        at androID.Widget.ListVIEw.makeAndAddVIEw(ListVIEw.java:1876)        at androID.Widget.ListVIEw.fillDown(ListVIEw.java:702)        at androID.Widget.ListVIEw.fillFromtop(ListVIEw.java:763)        at androID.Widget.ListVIEw.layoutChildren(ListVIEw.java:1671)        at androID.Widget.AbsListVIEw.onLayout(AbsListVIEw.java:2148)

这是androID的logcat.
我尝试使用Java正常工作的基本适配器,在Adapter或其他适配器中出了点问题.
我尝试使用公共构造函数,并且发现数组列表计数3已检查.总是在getVIEw崩溃

MyAdapter代码：：

   inner class MyAppAdapter constructor(private val parkingList: ArrayList<App>, private val mContext: Context) : BaseAdapter() {        overrIDe fun getCount(): Int {            return this.parkingList.size        }        overrIDe fun getItem(position: Int): Any {            return position        }        overrIDe fun getItemID(position: Int): Long {            return position.tolong()        }        overrIDe fun getVIEw(position: Int, convertVIEw: VIEw, parent: VIEwGroup): VIEw? {            val vIEwHolder: VIEwHolder            var rowVIEw: VIEw? = convertVIEw            if (rowVIEw == null) {                rowVIEw = LayoutInflater.from(mContext).inflate(R.layout.item_more_apps, parent, false)                vIEwHolder = VIEwHolder()                vIEwHolder.appIcon = rowVIEw.findVIEwByID(R.ID.appIcon)                vIEwHolder.appname = rowVIEw.findVIEwByID(R.ID.appname)                vIEwHolder.appDescription = rowVIEw.findVIEwByID(R.ID.appDescription)                rowVIEw.tag = vIEwHolder            } else {                vIEwHolder = convertVIEw.tag as VIEwHolder            }            vIEwHolder.appname!!.text = String.format("%s", this.parkingList[position].name)            vIEwHolder.appDescription!!.text = String.format("%s", this.parkingList[position].description)            GlIDe.with(applicationContext).load(this.parkingList[position].icon).into(vIEwHolder.appIcon!!)            rowVIEw?.setonClickListener {                try {                    startActivity(Intent("androID.intent.action.VIEW", Uri.parse("market://details?ID=" + this@MyAppAdapter.parkingList[position].link)))                } catch (e: ActivityNotFoundException) {                    startActivity(Intent("androID.intent.action.VIEW", Uri.parse("http://play.Google.com/store/apps/details?ID=" + this@MyAppAdapter.parkingList[position].link)))                }            }            return rowVIEw        }        inner class VIEwHolder {            var appDescription: TextVIEw? = null            var appIcon: ImageVIEw? = null            var appname: TextVIEw? = null        }    }

在AsyncTask中使用-> onPostExecute

  myAppAdapter = MyAppAdapter(appArrayList, applicationContext)            lvPoses!!.adapter = myAppAdapter

像这样清除变量

   lateinit var myAppAdapter: MyAppAdapter    private val appArrayList = ArrayList<App>()    private var lvPoses: ListVIEw? = null

解决方法:

如果尚未创建视图,则convertVIEw可以为null.修复参数声明：

overrIDe fun getVIEw(position: Int, convertVIEw: VIEw?, parent:      VIEwGroup): VIEw? {...}

总结

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